From fc9ca55b6a4a7afb4281ee8da52209e3655b9e50 Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Thu, 7 Dec 2006 04:22:23 +0000
Subject: [PATCH] Create an option to turn off generation of fcmp instructions
 while still allowing integer setxx instructions to be converted to icmp.

llvm-svn: 32302
---
 llvm/tools/llvm-upgrade/UpgradeParser.y | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/llvm/tools/llvm-upgrade/UpgradeParser.y b/llvm/tools/llvm-upgrade/UpgradeParser.y
index 1ee394c8272b..f53369d6031b 100644
--- a/llvm/tools/llvm-upgrade/UpgradeParser.y
+++ b/llvm/tools/llvm-upgrade/UpgradeParser.y
@@ -24,6 +24,7 @@
 #define YYINCLUDED_STDLIB_H
 #define YYDEBUG 1
 #define UPGRADE_SETCOND_OPS 0
+#define GENERATE_FCMP_INSTS 0
 
 int yylex();                       // declaration" of xxx warnings.
 int yyparse();
@@ -247,8 +248,16 @@ getCompareOp(const std::string& setcc, const TypeInfo& TI) {
   result[6] = cc1;
   result[7] = cc2;
   if (TI.isFloatingPoint()) {
+#if GENERATE_FCMP_INSTS
     result[0] = 'f';
     result[5] = 'o'; // FIXME: Always map to ordered comparison ?
+    if (cc1 == 'n')
+      result[5] = 'u'; // NE maps to unordered
+    else
+      result[5] = 'o'; // everything else maps to ordered
+#else
+    result = setcc;
+#endif
   } else if (TI.isIntegral() || TI.isPointer()) {
     result[0] = 'i';
     if ((cc1 == 'e' && cc2 == 'q') || (cc1 == 'n' && cc2 == 'e'))